EP 1171710 B1 20050615 - PUMP SYSTEM FOR DELIVERING CRYOGENIC LIQUIDS
Title (en)
PUMP SYSTEM FOR DELIVERING CRYOGENIC LIQUIDS
Title (de)
PUMPENSYSTEM ZUM FÖRDERN VON KRYOGENEN FLÜSSIGKEITEN
Title (fr)
SYSTEME DE POMPE POUR LE REFOULEMENT DE LIQUIDES CRYOGENIQUES
Publication
Application
Priority
- DE 19915847 A 19990408
- EP 0003033 W 20000405
Abstract (en)
[origin: US6722866B1] A pump system for delivering cryogenic liquids is proposed that is suitable, for example, for refueling motor vehicles with H2. It consists of a container for receiving the cryogenic liquid, in which at least one pump is arranged that is designed as a reciprocating pump with connecting rod actuation and spring recover. Pump cylinder (10) of the reciprocating pump is divided by means of plunger (24, 37) into two chambers (a and b) that are arranged on the pressure side or the induction side. By exerting tensile forces on connecting rod (29), in the pressure stroke the cryogenic liquid that is located in the container is initially trapped in chamber (b). When connecting rod (29) is returned to its starting position by return spring (23), the liquid that is trapped in chamber (b) is then hurled without pressure into chamber (a). In the subsequent pressure stroke, the liquid is finally released via a gap (d) to a pressure housing and from there to the consumer by exerting tensile forces on connecting rod (29).
IPC 1-7
IPC 8 full level
F04B 9/02 (2006.01); F04B 9/06 (2006.01); F04B 15/08 (2006.01); F04B 23/02 (2006.01); F04B 53/12 (2006.01); F17C 5/02 (2006.01)
CPC (source: EP US)
F04B 9/02 (2013.01 - EP US); F04B 15/08 (2013.01 - EP US); F04B 53/122 (2013.01 - EP US); F17C 5/02 (2013.01 - EP US); F17C 2203/0391 (2013.01 - EP US); F17C 2221/012 (2013.01 - EP US); F17C 2223/0161 (2013.01 - EP US); F17C 2223/033 (2013.01 - EP US); F17C 2227/0142 (2013.01 - EP US); F17C 2265/065 (2013.01 - EP US); F17C 2270/0139 (2013.01 - EP US); F17C 2270/0168 (2013.01 - EP US); F17C 2270/0184 (2013.01 - EP US); Y02E 60/32 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6722866 B1 20040420; AT E298043 T1 20050715; CA 2365953 A1 20001019; DE 19915847 A1 20001012; DE 50010564 D1 20050721; EP 1171710 A1 20020116; EP 1171710 B1 20050615; EP 1171710 B8 20050810; ES 2244432 T3 20051216; PT 1171710 E 20051031; WO 0061944 A1 20001019
DOCDB simple family (application)
US 95814002 A 20020416; AT 00922611 T 20000405; CA 2365953 A 20000405; DE 19915847 A 19990408; DE 50010564 T 20000405; EP 0003033 W 20000405; EP 00922611 A 20000405; ES 00922611 T 20000405; PT 00922611 T 20000405